1 Cardiothoracovascular Department, Azienda Ospedaliero-Universitaria Careggi and University of Florence, Florence, Italy. Electronic address: scheggiv@aou-careggi.toscana.it.
2 Cardiothoracovascular Department, Azienda Ospedaliero-Universitaria Careggi and University of Florence, Florence, Italy.
3 Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
4 Cardiothoracovascular Department, Azienda Ospedaliero-Universitaria Careggi and University of Florence, Florence, Italy; Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.